Disklavier

I would really like to have a recommendation from the users with much 
more experience than myself, on the software to be used for recording 
off the various sites on the computer.  I have a Model DGP1XG/DGH1BXG.
Do you use the Yamaha brand or do you recommend another brand that 
seems to do a better job.  I would also like to know the recommended 
source of purchase for these items if they are ordered on line.

As always, many thanks!  I look forward to mastering this process one 
of these days and hope to add to the files!!!

John Bryant